[docs] [issue10665] Expand unicodedata module documentation

[STINNER Victor]

STINNER Victor <victor.stinner at haypocalc.com> added the comment:

> The patch contains non-ascii chars that should be avoided (they break `make pdf`).

What is the error? Can't you fix the PDF generator instead?

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue10665>
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